Work length gauge attachment for chain saws

Abstract

An attachment for a chain saw, suitable for holding a work length gauge, such as a wire log length gauge, to the chain saw so as to facilitate measuring and cutting logs to equal length, is provided for fastening to different handles and/or handle portions of different types of chain saws and for holding the gauge in desired gauging position with respect to the saw chains and cuts. The attachment is adapted to be fastened to vertical, horizontal transverse and horizontal longitudinal handle portions and to hold the log length gauge so that it may extend horizontally and transversely with respect to the chain. Positioning of the attachment on the saw may be effected by removing or loosening the saw handle and sliding the attachment onto it and then refastening the handle. In a preferred embodiment of the invention the attachment may be fastened to the saw handle without the need for loosening or removing the handle.

What is claimed is: 
     
       1. A gauge attachment for a chain saw, suitable for attachment to transverse, vertical and longitudinal handles or handle portions of chain saws and to which a work length gauge which is a rod, tube or wire is fastenable in such position that with respect to such chain saw handles or portions thereof, when the attachment is attached thereto and the gauge is fastened to it, the gauge extends transversely with respect to the saw chain, which comprises a body portion which includes a substantially teardrop shaped opening through it, rounded on one end and converging toward a point at the other end, with a threaded opening at the rounded end to accommodate a set screw, a set screw for screwing into said opening to bear against a chain saw handle or handle portion so as to hold the attachment in desired position thereon, a plurality of openings in the attachment body suitable for selective insertion of the work length gauge and for holding it in desired gauging position, said openings being walled passageways through the body portion of the article, and having threaded portions coplanar and intersecting at right angles, and set screws for screwing in the threaded passageway portions for holding the gauge in place in one of such passageways when the corresponding screw is tightened. 
     
     
       2. A gauge attachment according to claim 1 wherein the body portion of the attachment is substantially of teardrop shape, corresponding to the shape of the internal opening therein, rounded at one end and converging toward the other end, with the passageways for selective insertion of the gauge and the set screws for holding the gauge in place being located at the end of the attachment away from the rounded end thereof. 
     
     
       3. A gauge attachment according to claim 2 wherein the body portion is of a rigid synthetic organic polymeric material. 
     
     
       4. A gauge attachment for a chain saw, suitable for attachment to transverse, vertical and longitudinal handles or handle portions of chain saws and to which a work length gauge which is a rod, tube or wire is fastenable in such position that with respect to such chain saw handles or portions thereof, when that attachment is attached thereto and the gauge is fastened to it, the gauge extends transversely with respect to the saw chain, which comprises a body portion which includes a teardrop shaped opening through it, rounded at one end and converging toward a point at the other end, with a threaded opening at the rounded end to accommodate a set screw, a set screw for screwing into said opening to bear against a chain saw handle or handle portion so as to hold the attachment in desired position thereon, a plurality of openings in the attachment body suitable for selective insertion of the work length gauge and for holding it in desired gauging position, said openings being walled passageways through the body portion of the article and having threaded portions, which openings and the threaded portions thereof are at about right angles to each other, and set screws for screwing in the threaded passageway portions for holding the gauge in place in one of such passageways when the corresponding screw is tightened. 
     
     
       5. A gauge attachment according to claim 4 wherein the body portion of the attachment is substantially of teardrop shape, corresponding to the shape of the internal opening therein, rounded at one end and converging toward the other end, with the passageways for selective insertion of the gauge and the set screws for holding the gauge in place being located at the end of the attachment away from the rounded end thereof.